I lost all desire to explore caves when I read about that one dude who got stuck between the floor and the ceiling of a cave and no one could get him out. He died there and the cave was permanently sealed. Apparently, it was a popular spelunking spot because of the tight squeeze getting through. NAY! NAY!
I'll go into a cave if it's an established path with lighting. The Caves of Drach on the island of Mallorca are a fascinating tour. You follow a path to the world's largest subterranean lake and sit in bleachers. Then they turn out the lights and it is a dark like no other. Then the music starts... Boats come out and a classical music band comes out and plays music. At first you see a small light on the water as the boat comes out from behind a wall... After the music plays, the lights are slowly brought back up. The acoustics in there are amazing.